Removable valve cage for internal-combustion engines



-'May -27, 1930.4

A. HAsBRoUcK REMOVABLE' VALVE CAGE FOR INTERNAL COMBUSTION ENGINES Filed May 4, 1929 i Patented Nlay 27, 1930 i i i i i UNITED STATES PATENT OFFICE AUGUSTUS HASBROUCK, OF `HAVEN'y CONNECTICUT REMOVABLEVALVE CAGE Eon INTERNAL-AcoMBUsTIoN ENGINES Application filed May 4, 1929. Serial lvm-360,418.

This invention relates to improvement in ready path for the transference of heat from removable valve-cages for either the intake the seat to the cylinder head. or exhaust ports oi an internal combustion en- Another factor responsible for the close gine particularly designed `for air-cooled encontact between the neck of the valve-cage, gines. The object of this invention is to prothe annular valve-seat, and the cylinder-head, vide a valve-cage which `may be readily reresides in the fact that in operation the three movable if desired but which will closely tit parts in the order named are maintained at the cylinder head to which it is attached, ant diii'erent degrees of temperature, for instance, the invention consists in the construction as the Valve-cage being maintained at the highhereinafter described and particularly recited est temperature the valve-seat at the interme- 0u in the claims. i diate temperature; and the cylinder-head at In the accompanying drawings: the lowest temperature, relative to the others, Fig. l is a sectional view illustrating a res0 that the highlyheated neck of the valvemovable valvecage for internal combustion Cage expands to a relatively-great degree engines constructed in accordance with my and tightly engages the inner periphery ofthe ce' invention; and valve-seat which, Ain turn, is stretched int-o FigQiSaperspective view of the valve-seat close engagement with the opening lin the detached. cylinder-head by the expansion of the said In carrying out my invention I employ a neck. It will be understood, as above stated, valve-cage body 5 supporting a valve 6, the that the cylinder-head itself does not eX- 7o stem 7 of which extends through a sleeve 8 pand to the same degree as the neck of' the l mounted in the cage. On the outer end of the lvalve-Cage for the reason that it is mainstemwis a. flanged collar 9 and between the tained at a much lower temperature by the iange and cage is a valve-spring 10, The action of cooling-fins or cooling water, de-

valve extends through a neel; 11 formed npendent on whether or not the engine is of 75 tegral with the cage and surrounding the the aI`-C00ledor water-cooled type.

\ neck and closely fitting the same is a. valve- I thus provide a construction by which the seat 12 onto which the valve is normally transference of heat from one member to forced by the spring 10. This seat is mountanother is controlled and which permits the ed in an Opening 13 in the Cylinder head 14 of ready removal of the cage from the cylinder so an internal combustion engine in which it, when desired, when the parts are at atmoshas an easy tit to permit its ready insertion phGrlC temperatures. `or removal. I claim: l

The Seat has an annular flange 15 and the l. rIhe combination with a cylinder head cage a similar lange 16 which bear upon the haVmg fm 0136111115-E: 0f a Valvecilge Gmed S5 surface of the cylinder head to which they With 3J neka a Valve-Sem Sul-"founding and am attached by Screws 18. Preferably a gag closely fitting said neck and adapt-ed to enter kat 19 will be inserted between the ange l5 the saidopening in the cylinder head to which and the Cylinder head. the cage and seat* are secured, and a valve The Valveade body and Cylinrler head are mounted in the said cage to co-act with said J0 D i seat.

preferably formed from aluminum alloy having a high coetlicient of linear expansion, h 2'- Tile COmbu-mtlwnfwlth la Cyuidgfr head while the valve-seat is formed from bronze avmg an Openmg O a Va 7e-Cage Owned l With a neck, a :flange above said neck, a valvee ,15 allo-y having a lower coeiiicientof 11mm' @X` seat surrounding and closely iitting said neck 95 Panslong u13@ as thi? Deck 0f th@ Odg@ 9X and adapted to enter the said cylinder-head Pand?, 1t Wlu tlghtly engage the Valve-Seat `and formed with aflange7 said flanges secured and, 1n turn: fQlC@ the VRIVG'SQM Elgallst th@ to the cylinder head around the opening thereopening in the cylinder head and Cause it t0 in, and a valve mounted in the said cage to co- 59 make a close contact therewith and provide a act with said seat. 10U

3. The combination with a cylinder head having an openin of a valve-cage formed with a neck, a va ve-seat surrounding and closely fitting said neck and adapted to enter the said cylinder head to which the cage and seat are secured, and a valve mounted in the n y said cage to co-act with said seat, the cylinder head and valve-cage having a relatively high coeicient of linear expansion and the va ve-seat having a relatively lower coefficient of linear expansion.

In testimony whereof, I have signed this specification. Y

AUGUSTUS HASBROUCK.

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